Evaluation of Water Resources Carrying Capacity of Shiyang River Basin Based on Quadratic Game Theory Cloud Model
To accurately judge the carrying capacity of water resources in the Shiyang River Basin and improve the a-daptive capacity of high-quality economic development to water resources carrying capacity within the basin,a water re-sources carrying capacity evaluation system with 16 selected evaluation indicators from social,economic,ecological,and water resources systems was constructed.The changes in water resources carrying capacity in the Shiyang River Basin from 2000 to 2020 were evaluated using a secondary-game cloud model and an obstacle degree model to identify the main obstacles factors.The results show that during 2000-2020,the carrying capacity of water resources in the Shiyang River Basin has improved,and the carrying capacity of water resources is generally at level Ⅲ(critical bearing state).The ma-jor obstacles to water resources carrying capacity are the ecological water consumption rate,per capita GDP,and the ac-tual irrigation rate of arable land.To enhance the rational and efficient utilization of water resources,the Shiyang River Basin should adjust its water usage structure,optimize water resources allocation,promote the development of water-sav-ing economies,and strengthen ecological environment protection.
cloud modelgame theory multiple combinatorial weightsobstacle degreewater resources carrying ca-pacityShiyang River basin
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